Products

Get Price

Copper Mining and Extraction Sulfide Ores

The ore is treated with dilute sulfuric acid This trickles slowly through the ore dissolving copper to form copper sulfate The copper is recovered by electrolytic refining Advantages of this process are See Copper Mining and Extraction Oxide Ores for further information on the leaching process

Get Price

Get Price

COPPER Copper production

Flotation of non-sulfide copper minerals is rare because these ores are mostly subjected to hydrometallurgical copper recovery for example heap leaching In Zambia and Zaire however siliceous copper oxide ores are floated with fatty acid collectors and dolomitic copper oxide ores are sulfidized with sodium hydrogensulfide and then floated

Get Price

Get Price

Optimization of parameters affecting recovery of copper

of copper from low-grade sulfide ores by bioleaching is essential The physical chemical and microbial factors involved in a leaching environment thecharacteristics of ore for leaching and the type of leaching process are the most important factors affecting the microbial oxidation of metals Some

Get Price

Get Price

Sulfuric acid leaching of Igarap Bahia gold

According to studies a feasible solution would be to pretreat the ore to remove copper minerals prior to cyanidation The goal of this experimental work was to study the conditions for the removal of copper from the Igarap Bahia gold-copper ore by sulfuric acid leaching applying a statistical approach to the experimental design

Get Price

Get Price

Effectiveness acidic pre

2 3 Acid cleaning assay The copper cleaning test consisted of solubilization in an acidic environment of 50g of ore containing copper This mass was leached in a flat-bottomed flask containing 500ml of acid solution (pH1 0) for 48h at room temperature with stirring rate at 300rpm

Get Price

Get Price

From Ore to Finished Product

Copper - From Beginning to End Copper is a major metal and an essential element used by man It is found in ore deposits around the world It is also the oldest metal known to man and was first discovered and used about 10 000 years ago And as alloyed in bronze (copper-tin alloy) about 3000 BC was the first engineering material known to man

Get Price

Get Price

Microbial Leaching (Bioleaching Biomining

The Fe 3+ ions produced is an oxidation of ores therefore it is pumped back to pile Sulphuric acid is added to maintain pH An outline of microbial leaching of copper is shown in Fig 21 9 Microbial leaching of copper has been widely used in the USA

Get Price

Get Price

Leaching of a low

The conditions under which copper was retained and re-distributed in a test heap of pyrrhotite-rich copper-nickel sulfide ore were investigated in abiotic column leaching tests It was determined that acidity plays a key role in maximising copper recovery During passage through the ore bed when the leachate pH rose to 2 3 copper ions previously released to solution through the oxidation

Get Price

Get Price

In

Experimental results obtained in laboratory leaching studies of primary copper sulfide ore in sulfuric acid systems pressurized with oxygen are interpreted by a computerized geometric model involving the movement of a reaction zone through the ore fragments Physical properties of the ore including size shape and mineral content are considered

Get Price

Get Price

PRESSURE LEACHING

pressure leaching of sulfide concentrates generated through milling of the underlying copper sulfide mineralogy 2) The increase in penalty elements in some ore bodies – the principal penalty element being found today is arsenic which is fixed through pressure oxidation but other elements are

Get Price

Get Price

EXTRACTING METALS FROM SULFIDE ORES

Large-scale electrowinning of copper was developed between 1912 and 1915 at one of the world largest copper mines that at Chuquicamata in Chile Electrowinning has become the exclusive choice for recovering copper following leaching of oxide or sulfide ores and solvent extraction

Get Price

Get Price

Extraction of metals from complex sulfide

Apr 11 2017Extraction of metals from complex sulfide nickel concentrates by low-temperature chlorination roasting and water leaching Authors Sulphuric acid leaching of zinc and copper from Nigerian complex sulphide ore in the presence of hydrogen peroxide J S Non-sulfuric acid generation type copper smelting by chlorination roasting Resour

Get Price

Get Price

Leaching of sulfide copper ore in a NaCl–H 2

Dec 01 2007Read Leaching of sulfide copper ore in a NaCl–H 2 SO 4 –O 2 media with acid pre-treatment Hydrometallurgy on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips

Get Price

Get Price

Copper Oxide Heap Leaching Plant Cost

Copper vat leaching process a great deal of progress has been made since the introduction of vat leach each copper oxide ores 2 the use of a strictly copper sulfide ore feed 3echnologies continuous vat leaching cvl and the glycine leaching Read More + Copper Leaching Plant And Machinery

Get Price

Get Price

Copper Oxide Ore Leaching Ability and Cementation Behavior

Copper extraction from raw materials is obtained by two main methods Pyrometallurgy and Hydrometallurgy [5] About 80% copper-from-ore is obtained by flotation smelting and refining nearly all sulfide type minerals such as Chalcopyrite Covellite Chalcocite and Bornite processed by this method which is known as the pyrometallurgy method [5

Get Price

Get Price

EP2844780B1

EP2844780B1 EP13731262 5A EP13731262A EP2844780B1 EP 2844780 B1 EP2844780 B1 EP 2844780B1 EP 13731262 A EP13731262 A EP 13731262A EP 2844780 B1 EP2844780 B1 EP 2844780B1 Authority EP European Patent Office Prior art keywords leaching ore orp solution fact Prior art date 2012-05-04 Legal status (The legal status is an assumption and is not a legal conclusion

Get Price

Get Price

Recovery of Cobalt and Copper From Complex Sulfide

copper from complex sulfide concentrates Processes currently used de pend largely upon precipitation techniques to remove impurities and re cover cobalt from sulfate liquors prepared by oxidative pressure leaching of the sulfide concentrates The Bureau conducted bench-scale research on a process for treating cobaltite concentrates comprising

Get Price

Get Price

Investigation of Affecting Parameters on Heap Leaching

Heap leaching method is known as cheap method for copper extraction Presence of clay and acid consumer waste minerals are the most critical issues because they may bring out the process from economic mode For reduce acid consumption and increasing copper extraction in heap leaching method about 3 tons sample was taken randomly from different low grade zones

Get Price

Get Price

LEACHING OF LOW

Oxide copper ore mixed oxide-sulphide ores and low-grade copper sulphide ore which for economic reasons cannot be enriched by flotation may be processed by leaching methods Agents for leaching copper can be acid base or salt solutions Of all of these agents sulphuric acid has been given the

Get Price

Get Price

HEAP LEACHING TECHNIQUE in MINING

metal ores (1% copper 1g/ton gold 0 5% nickel) previously considered uneconomical became feasible with introduction of heap leaching technologies (Marsden 2009) In consideration of ore types a generalized diagram showing the applicable ore beneficiation technologies for oxide and sulphide ores versus ore grade is given in Figure 2

Get Price

Get Price

Improvements in Copper heap leaching by use of wetting

Improvements in Copper heap leaching by use of wetting agents Proceedings of EMC 2009 3 A sprinkler system is installed on top of each heap allowing the diluted sulfuric acid to be fed uni-formly over the ore While the solution percolates through the heap copper is leached out of the ore

Get Price

Get Price

Leaching

Acid leaching is often employed as the first stage of extraction of base metals especially in the case of copper for which mineral acids such as HCl H 2 SO 4 or HNO 3 are used in combination with H 2 O 2 a strong oxidant that improves the leaching performance of the acid [37]

Get Price

Get Price

12 3 Primary Copper Smelting

12 3 Primary Copper Smelting 12 3 1 General1 Copper ore is produced in 13 states In 1989 Arizona produced 60 percent of the total U S ore Fourteen domestic mines accounted for more than 95 percent of the 1 45 megagrams (Mg) (1 6 millon tons) of ore produced in 1991 Copper is produced in the U S primarily by pyrometallurgical smelting

Get Price

Get Price

Using of Roasting Leaching Methods for Copper Recovery

Due to copper minerals embedded in this materials at a very fine particle size and closely symbiosis with iron content and quartz lead to it difficult to enrichment through ore dressing methods And copper minerals mainly exist in the form of sulfide copper mineral it can not by leaching method for processing directly thus put forward a

Get Price

Get Price

Recovery of Copper from Copper Sulfide Concentrate by

fides and copper sulfide for med copper sulfate whereas iron sulfide converted mostly to hematite at 500˚C [9] In the present work a sulfation roasting-acid leaching process that associated pyrometallurgical and hydro-metallurgical methods has been used for the recovery of copper from a copper sulfide concentrate The reactions

Get Price

Get Price

Copper Mining and Extraction Sulfide Ores

The smelter for sulfide ores produces sulfur dioxide gas This is scrubbed from the flue gases to make sulfuric acid for leaching copper from oxide ores Scrubbing sulfur dioxide also protects the environment For example FeO(s) + SiO 2 (s)→ FeO SiO 2 (slag) This is very similar to the removal of impurities in the blast furnace

Get Price

Get Price

NIOSHTIC

Extraction of copper from a porphyry ore by simulated in situ leaching techniques was investigated by the Bureau of Mines as a means of recovering copper from deeply buried sulfide deposits Effects of adding sodium chloride and nitric acid separately to sulfuric acid leaching systems under oxygen pressure were studied on a bench scale to

Get Price

Get Price

Investigation on leaching of malachite by citric acid

Abstract Leaching of an oxidized copper ore containing malachite as a new approach was investigated by an organic reagent citric acid Sulfuric acid is the most common reagent in the leaching of oxide copper ores but it has several side effects such as severe adverse impact on the environment

Get Price

Get Price

Diagnostic Leaching for Refractory Gold Ores

A portion of the leach residue is advanced to Stage 3 Stage 3 Leach residue is reacted in a hot sulfuric acid leach to dissolve acid soluble minerals not dissolved by hydrochloric acid such as sphalerite and reactive pyrite and other labile copper sulfide minerals and liberate any gold that might be locked within these minerals The

Get Price

Get Price

US20090241734A1

A method of leaching copper sulfide ores wherein the growth of microorganisms present on ore surfaces and in a leaching solution is inhibited and the pH of the leaching solution is adjusted to 1 5 or less upon leaching of copper from copper sulfide ores containing chalcopyrite is provided

Get Price

Contact Form

Contact Details

If you are interested in our company or products, welcome to visit our company or local offices; you can also get contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.

  • cone crusher for sale austrilia
  • used vsi crushers for aggregates
  • 1000 tpd dry process cement plant equipment
  • ball mill manufacturer for stone crushing
  • sbm stone crusher kenya
  • used iron ore impact crusher suppliers in nigeria
  • mix n ball nano herb grinder
  • of 300 tons per hour crusher plant
  • rborundum conical straight grinding stone dealers chennai
  • fly ash processing machines
  • crusher market in siliguri
  • machine smol crusher stone used forsale
  • what is the operational procedure of quarry
  • good quality quarry primary crusher
  • bodie history milling ore from bodie mines
  • rc4wd rock crusher lt
  • phb weserhutte belt coveyor maintenance
  • phoeni crusher phoeni rock
  • Global Service Network

    Global marketing networks and overseas offices connect ZXing with users tightly so that we can offer more timely services to our customers.

    Scroll to Top